| /* |
| * Copyright 2021 Code Intelligence GmbH |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <cstdint> |
| |
| // This file declares variants of the libFuzzer compare, division, switch and |
| // gep hooks that accept an additional caller_pc argument that can be used to |
| // pass a custom value that is recorded as the caller's instruction pointer |
| // ("program counter"). This allows synthetic program counters obtained from |
| // Java coverage information to be used with libFuzzer's value profile, with |
| // which it records detailed information about the result of compares and |
| // associates it with particular coverage locations. |
| // |
| // Note: Only the lower 9 bits of the caller_pc argument are used by libFuzzer. |
| extern "C" { |
| void __sanitizer_cov_trace_cmp4_with_pc(void *caller_pc, uint32_t arg1, |
| uint32_t arg2); |
| void __sanitizer_cov_trace_cmp8_with_pc(void *caller_pc, uint64_t arg1, |
| uint64_t arg2); |
| |
| void __sanitizer_cov_trace_switch_with_pc(void *caller_pc, uint64_t val, |
| uint64_t *cases); |
| |
| void __sanitizer_cov_trace_div4_with_pc(void *caller_pc, uint32_t val); |
| void __sanitizer_cov_trace_div8_with_pc(void *caller_pc, uint64_t val); |
| |
| void __sanitizer_cov_trace_gep_with_pc(void *caller_pc, uintptr_t idx); |
| |
| void __sanitizer_cov_trace_pc_indir_with_pc(void *caller_pc, uintptr_t callee); |
| } |
| |
| void CalibrateTrampoline(); |